immortality (n.) and directly from Latin immortalitatem (nominative immortalitas) “deathlessness, endless life,” also “imperishable fame,” from immortalis “undying” (see immortal). Of fame, etc., “quality of being permanent,” early 15c.

1 : exempt from death the immortal gods. 2 : exempt from oblivion : imperishable immortal fame. 3 : connected with or relating to immortality.

Of course, you can’t reverse the signs of aging completely. You can go the nonsurgical route and add firming creams or facial exercises to your skincare routine. There are also cosmetic procedures that provide quicker results, such as laser surfacing or ultrasound skin tightening.

Several review articles have shown that deficient DNA repair, allowing greater accumulation of DNA damages, causes premature aging; and that increased DNA repair facilitates greater longevity.

In a study published in the British Journal of Cancer (published by the research journal Nature) the researchers show that in laboratory tests, a compound called indole-3-carinol (I3C), found in broccoli, cauliflower and cabbage, and a chemical called genistein, found in soy beans, can increase the levels of BRCA1 and …

DNA damage is an alteration in the chemical structure of DNA, such as a break in a strand of DNA, a base missing from the backbone of DNA, or a chemically changed base such as 8-OHdG. DNA damage can occur naturally or via environmental factors.

DNA is a dynamic and adaptable molecule. As such, the nucleotide sequences found within it are subject to change as the result of a phenomenon called mutation. Sometimes, a mutation may even cause dramatic changes in the physiology of an affected organism. …

Our studies and those of many other researchers around the world have shown that early life stress alters how DNA is packaged, which makes cells function differently than their original mandate.

Environmental factors such as food, drugs, or exposure to toxins can cause epigenetic changes by altering the way molecules bind to DNA or changing the structure of proteins that DNA wraps around.

In-vitro, animal, and human investigations have identified several classes of environmental chemicals that modify epigenetic marks, including metals (cadmium, arsenic, nickel, chromium, methylmercury), peroxisome proliferators (trichloroethylene, dichloroacetic acid, trichloroacetic acid), air pollutants (particulate …

When a gene mutation occurs, the nucleotides are in the wrong order which means the coded instructions are wrong and faulty proteins are made or control switches are changed. The body can’t function as it should. Mutations can be inherited from one or both parents. They are present in the egg and/ or sperm cells.

In the course of life, aging processes, environmental influences and lifestyle factors such as smoking or diet induce biochemical alterations to the DNA. Frequently, these lead to DNA methylation, a process in which methyl groups are added to particular DNA segments, without changing the DNA sequence.

Listen to pronunciation. (deh-LEE-shun) A type of genetic change that involves the absence of a segment of DNA. It may be as small as a single base but can vary significantly in size.

The deletion occurs at the end of the short (p) arm of the chromosome. This chromosomal change often leads to intellectual disability, developmental delay, and abnormal physical features. Individuals with 3p deletion syndrome typically have severe to profound intellectual disability.

22q11 deletion syndrome is the most common human chromosomal deletion syndrome occurring in approximately 1 per 4000–6000 live births [32].

An extra copy of a stretch of genes on chromosome 22 may contribute to autism, according to the first study to carefully characterize a large group of individuals who carry this duplication1. The doubling can also lead to medical complications, such as vision or heart problems.

Chromosomal Deletions Deletions involve the loss of DNA sequences. Phenotypic effects of deletions depend on the size and location of deleted sequences on the genome. For instance, deletions that span a centromere result in an acentric chromosome that will most likely be lost during cell division.

Autism is just as common among children missing a segment of chromosome 16 as it is in those with an extra copy, according to a new study1. The study is the first to carefully characterize psychiatric diagnoses in a large group of individuals who carry these mutations. The findings are at odds with previous work.